Founding Backend Engineer – AI for Commercial Lending

Rnb Consultancy; San Francisco (CA); Sur place; USD 200 000 - 300 000; Plein temps

Résumé du poste

A YC-backed startup is building an AI operating system for commercial lending. We are hiring 3 founding engineers to own end-to-end features from the borrower portal to live data reconciliation.

You’ll work on production-grade backend and infra, computer vision for financial statements, and turning customer conversations into product improvements. Expect regular customer visits and a fast-paced, highly technical environment in San Francisco.

Qualifications

• 2–6 years as a professional engineer with startup experience.
• Strong backend and infra skills with AI/ML or agent systems in production.
• Clear, to-the-point communication; happy to sit with customers and travel monthly.
• Claude, Cursor or Codex as part of your everyday workflow.
• Background that makes people stop and look twice; willingness to relocate to SF.

Responsabilités

• A production agent from start to finish, probably beginning with the portal borrowers use.
• Computer vision and parsing that read financial statements, and live reconciliation when the numbers disagree.
• The backend and infra that get the product from pilot to scale.
• Time with customers at their offices, and turning those conversations directly into product.

Connaissances

Backend engineering

Infra systems

AI/ML in production

Customer communication

Claude/Codex workflows

Outils

Claude

Cursor

Codex

Description du poste

Want to be a founder in everything but the title, at the moment 8 pilots turn into seven-figure contracts?

A YC-backed startup is building the AI operating system for commercial lending. At banks and fintechs, underwriting and servicing a business loan often takes months; their agents bring that down to under two weeks. The agents keep an eye on loan portfolios, ask borrowers for missing documents, read whatever arrives (from crisp PDFs to blurry scans and handwritten notes) and spread the financials according to each lender's own rules, with in-house lending specialists checking every result. It's a $3T market, and a bank spends roughly $25k to originate one loan. What sets them apart: underwriting models tuned per industry, because general-purpose LLMs still miss those nuances.

They're hiring 3 founding engineers.

What you'll own

• A production agent from start to finish, probably beginning with the portal borrowers use
• Computer vision and parsing that read financial statements, and live reconciliation when the numbers disagree
• The backend and infra that get the product from pilot to scale
• Time with customers at their offices, and turning those conversations directly into product

What you bring

• 2-6 years as a professional engineer, with real startup experience (non-negotiable)
• Deep backend and infra skills, and AI, ML or agent systems you've put into production
• Clear, to-the-point communication; happy to sit with customers and travel monthly
• Claude, Cursor or Codex as part of your everyday workflow
• Something in your background that makes people stop and look twice
• Based in SF or ready to move, and able to start soon

Bonus points

• You founded a company that took off
• ICPC or olympiad medals
• Palantir-style forward deployed work, or early engineer at a fast-growing fintech
• Document AI, computer vision, MCP or agent infrastructure

What’s in it for you

• $200k-$300k base + 1-3% equity
• Founding-team ownership across product and engineering
• Visa sponsorship welcome

Good to know

• Full-time, in person in San Francisco, 9-9-6 (Saturdays can be remote)
• Customer visits roughly once a month
• Process: intro call -> technical interview -> optional behavioral chat -> work trial in person -> offer